kraft



H. P. KRAFT INFLATING COUPLING,

APPLICATION FILED Nov. 4, I9I5.

1,39%,5' Pafented May 2?, 191.9u

i o i neemt e. mem", eii'zetneimtooe, new Jemen?.

eeoegeee.,

.To all 'wilma may concern Be it known tliet l, HENRY l?. illmm., acitizen of the United States oli America, re-

certainhew and useful lmpi-ovements in l Inlatingouplings, of which thefollowing is e specification. q v

This invention relates to imitating; couplimgs9 and aims to providecertain improvements theein.

The invention is particularlydirected to thatI type of coupling which isadapted fot' v use in connection with ein tanks for lilling pneumatictire valves, the coupling lie/ing'y at the end of a vdxem'dole'tube, andheine; designed to he pressed down over the tire v'alve to' make a tightjoint therewith. rlhe act of pressing down the coupling opens valvewithin the coupling which peimits air .f from the tank to flow throughthe tire valve into the tire. The removal otf the coupling automaticallycloses such valve. rlhe invenv y. tion provides a coupling, the Workingparte of which are easily accessible for repairs, and which iseconomical to manufacture.

Referring 'to 'the dra vings, which illustrate one 'form oi' theinvention,

Figuee is an elevation of the coupling. Fie'. is e diametiica'l sectionon an en larged scale.

"" Wlan.

t drawings., let A indicate oi' hod'y oit' the coupling' which is shownoimed with a right angled hmnch B formed a nipple designed to be insented in the end oi the flexible hose or air tube leading from thetank. The lood'y poi tio-n d 1s formed with a valve chamber C in whichworks a valve "proper D preferably fpvessed outwardly hy spring; E. Thevalve f proper is provided with ajoackimer F which "it carries on theoutei? face theteoii, and in l'ottdeir to hold the packinfg` in place:md pie vvent its spreading 'While et the same time providing; an' easymeans ot replacement l utilize screvwtlnfeaded sleeve G which enegagese. threaded 'poition lil'lioifined on the valve pamper. The sleeve il*formed with a flange l which enga .g the hacking Wasl'iei l?? and holdsit seem ly in luce..

The valve A l eontact with c mko @l which. is

e lati/ei heine" eed which.

e similar thread formed in'theupper tofsot4 of the coupling body.' 'Inorder to secure a tight joint the packing5 L is lprcwided which isforced against the outer part of the coun pling body by a flange Mformed on the seat member l.

`The valve D is opened by a valve opener which moves in a recess 0formed inthe seat member K, the upper.i part of which is formed' with arecess P in which is secured a packing Washer Q, which packing washer isadapted to bear against the end ot the tire valve casing, and form atight joint there with.

As the valve opener is pi'essed inwardly". hy the tire valve, it bearsagainst the coupling valve D andopens this against its spx-ing@ E. lnthe construction shown the valve opener is provided with a tubularproection R which passes, inwardly through the valve seat J and pressesthe valve open.

` A lateral passage S in the projection R pervalve opener into the outerair, and compels the air to lowthrough the lateral pas S into the valveopenei', and thence into 'the tire.

ln order to prevent the valve opener from escaping from theseat member,l prefer to provide a guard ring or stop V, which is screwed in theupperend of the seat-member, as shown.

The construction just described Yis very easily accessible.` ln order toremove the interior parts, it is only necessaryl to une screw 'the seatmember (which may be provided with flats W W for this puipose),whereupon the valve opener is removed with the seat member, and thevalve l? With its spring E easily dropped out. ln order to lremove thevalve opener from the valve seat member. the stop ring V may heunsci'evved,

nwhereiqpon the valve opener maybe removed .3 withmw' c .1M-ifi QW' Whai)i A, iii@ cimmcir desciri'bcd particu, scat wie. Ence" y and Gf bodyvalve mcmiicr iiiwcif'iy off smid mc bei; :i miv/'c umseatiiig mcmilci'ogmw scp@- mtciy from che scat mcmbcf and having projection passing;hmugh aid scsit mi@ adapte-ci is open Said vga-ivf), a packing; cm 'icd,by said naive unscatinp; mcmbci ied to make :i tight joint with 'Ehecpc' PJ tic valve casing., and af packing bei-wcm said scat member andmii/c miseatingmember' adapted tc make a iight joint bet-wcm ik@ twowhen. che waive unscating' member is pushed imvaidiy "by ith@ 'iifcvalve.

A ilcvicc ci? ihc` diameter described comprising' a body particu havinga, vaivc chaiiiii; :i ifa-ive in. sziiii'aivc chambci., :i spring foipushing' Scifi vsiivc cuwai'fiiy., scavi. member cu-W'zudijy of miv@chmubei and having miv@ scat @tending in- Wafdiy coward said valve, a.sci miiic:i=;c bcre -iu Suibcdj/ poifionadiipcd kc i-eccivc Said scatmembra-ig a iamgc on said scat. mcmbr, a packing bci-Wccn saii iziiigc:mei said bdy poi-ioi'i, an, uuseating cicvice having helio-w picjecioncxtendiiig through said @minimi carried by sind unsczvc'ing' deviceadszpizci make a tight joint wih the @op cf :i vaivc @swing7 a gmlckingbctw'ccn said unscaicg dcvicc sind' said seat mcmoci aciaptcd 'ifoiii-aim a tight joint between i; icitwo when um seating device is pushedinwardiy by the am taxing waive casing, and means im ictainin saidunscziting devies Within thc nicmbci.

fi device ci the cimmctef desciibed having a vaive ciiambci, a valve insaid chamba' having 1 Screw-fiucamic-pticiii a packing beyond saidSczcW-hicadcd tion, av ihren-died sicevc screwing mi screw-brandedpoifvgion ami having a iimiga adapted to engage said packing, gf; berufiapccd to scicw intoh said body pciziiima an .imscnt-ingkievicehaving' hoicw p21 'in ii ig comming' accci'ding to chum 1i, hziviiigfjci@ @hc mitici; and. u libs and remcvabicwith 'ibs 67. Qi-cvicc of iii?,comprising Maij-1 mem'iici' lscicwi pmfimi, mi@ 3 t with a scat? an,uns@ par@ fwiapbcfi im f n EW@ culi-

